16118420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11351}}^1$

素因数の和:11431

約数の個数: 24

約数和(自身を含む): 34328448

約数和(自身を除く): 18210028

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 11351, 22702, 45404, 56755, 113510, 227020, 805921, 1611842, 3223684, 4029605, 8059210, 16118420]

約数ペア:

[(1, 16118420), (2, 8059210), (4, 4029605), (5, 3223684), (10, 1611842), (20, 805921), (71, 227020), (142, 113510), (284, 56755), (355, 45404), (710, 22702), (1420, 11351)]